Rivet club-dolly.



UNID STATES PATNT OFFICE.

GEORGE MGAR'IHUR, OF BAYONNE, NEW JERSEY.

nivnr CLUB-DOLLY.

Application filed April 24, 1919.

i To all whom it may concern:

Be it known that I, Gnoncn MOARTHUR, a citizen of the United States, and a resident of Bayonne, county of Hudson, and State of New Jersey, have invented certain new and useful Improvements in Rivet Club-Dollies, of which the following is a specification.

My improvements relate to means for sustaining one end of a rivet while the other is being upset or hammered into shape, as in the assen'ibling of metallic structures for buildings, ships, bridges, etc., the object being to afford a tool or implement specially adapted to the purpose that may be quickly and conveniently applied and manipulated, and in which provision is made for adjusting it to the varying requirements of use as set forth in Letters Patent No. 1,172,894, issued to me Feb. 22, l916,the present invention being supplemental to that therein disclosed, in which a fulcrum bar is used in connection with the actuating lever by which the dolly proper is manipulated.

My present invention provides for the use of an auxiliary dolly bar to be used in conjunction with the actuating lever as a spring club dolly, the actuating lever being supported in a fulcrum stirrup on a flexible suspender which is attached temporarily to any available stationary support, so that my spring club dolly bar may be conveniently manipulated to sustain one end of a rivet while the other is being headed in a manner well known in the art, and provision being made for the mounting of the spring club dolly on the actuating lever in alinement with the longitudinal axis of the latter, or at right angles thereto, as hereinafter more fully set forth.

In the accompanying drawings,

Figures 1 and :2, are elevations of the actuating lever, taken at right angles to each other;

Fig. 3, is a side elevation; and

Fig. 4, an edge elevation of my spring club dolly bar;

Fig. 5, is what may be designated as a top view of the implement as used against a horizontal bolt or rivet;

Fig. 6, is a sectionalelevation taken upon plane of line 66, Fig. 5;

Fig. 7 is a view showing the seating of the actuating lever in the fulcrum stirrup;

Fig. 8, is a view illustrating the use of device in the support of a rivet in axial aline ment with the level";

Specification of Letters Patent.

Patented Dec. 39, 1919.

Serial No. 292,327.

Fig. 9, is a similar view showing the use of the device to sustain a rivet positioned substantially at right angles to the longitudinal axis of the actuating lever.

Fig. 10, is a side elevation of the dolly bar, showing a modification.

The actuating lever A, is essentially the same as that shown and described in my aforesaid Letters Patent No. 1,172,89 the preferred form of lever socket head a, be ing bifurcated or open-ended as in Figs. 9 and 10, of said patent. In fact my spring club dolly bar I), is in the nature of an alternative to the dolly bar and fulcrum bar shown and described therein, being designed for use where the fulcrum bar (discarded in the present instance) is of no use by reason of lack of available support opposed to the line of work to be accomplished. In other words, while the form and arrangement of parts shown in the patent are effective and practicable for work at substantially right angles to the longitudinal axis of the actuating lever, the device is only available where the fulcrum bar can be seated on an adja cent stationary part, and is not adapted for use as a club dolly positioned substantially in alinement with the longitudinal axis of the actuating lever A, as indicated for instance in Fig. 8, of the drawings in the present case. Hence, it is my purpose to equip each actuating lever A, with a set of detachable adjuncts consisting of the fulcrum bar and jam dolly described in the aforesaid patent together with my new spring club dolly, so called, so as to render the new commercial combination of parts adaptable to all the varying requirements of use.

With this understanding, my present riveting tool consists essentially of the actuating lever A, formed with the recessed socket head a", and my club dolly bar D, detachablv combined therewith, the means of copulation being the same as those provided for the 1' am dolly and lever bar in the patent referred to. That is to say, bearings (t, a, are formed in the side walls of the lever socket head a for the mounting thereon of bolts 13,13, which. are used to secure my club dolly D, in either position on the lever A, either that shown in Figs. 5 and 8, in substantial alinement with the longitudinal axis of the lever A, or at right angles thereto, as in Fig. 9, of the drawings.

To this end the body or shank d, of my club dolly bar I), is shaped to fit in snugly between the side walls of the socket head a, and is formed with central bolt holes d, d, which coincide with the bolt bearings a, a, in said head a when the said shank (Z, is

positioned in said socket head M, in alinement with the length of the actuatimlever A, as in Figs. 5, 6 and 8, and is also formed with the semi-circular edge recesses (Z (Z adapted to be brought into coincidence with said bolt bearings a, a, when the club dolly D, is positioned transversely between the side walls of the socket head (4*, at right angles thereto, as in Fig. 9, the bolts B, B, when inserted and seated in the head a in either case securing the club dolly in position.

It may be stated in this connection that I prefer to form the dolly shank d, with semicircular edge recesses (Z (Z as shown in Figs. 3 and 4:, of the drawings, but that annular recesses (Z (Z as in the modification shown in Fig. 10, may be resorted to with like result, so that I do not limit myself in this respect.

Only two central recesses or bolt holes d, d, are necessaryfor securing the dolly in alinement with the actuating lever A, because the latter can be moved freely horizontally to accommodate the dolly to the work to be done in that, direction; butas the lateral or vertical play of the actuating lever A, is comparatively limited, I provide the dolly shank (Z, with two or more pairs of edge bolt recesses (Z (P, so that the club dolly bar D, may be made to protrude more or less laterally from the socket head a, as may be found most expedient in adapting it to the requirements of the work to be done.

The forward or contactual end of the club dolly bar D, is formed with the usual or any suitable socket (Z for fitting over the previously formed head 1, of a rivet 1-,-r representing the new head after finishing by the pneumatic hammer or other tool or implement used for the purpose.

The bolts B, B, are obviously essentially coupling pins for sustaining the shank cl, of the club dolly bar within the lever socket head a", and hence I- do not limit myself to screw bolts for this purpose. fastenings might be substituted for the screws and nuts shown, or other well known mechanical expedients might be resorted to without departing from the spirit and intent of my invention in this respect. The screw bolts and nuts shown however represent operative means for accomplishing the results sought, which are, the assembling or disconnection of the parts in a convenient and expeditious manner, so that the implement may be readily adjusted to various situations and conditions of use. It may be noted this connection, that whereas in my former patent referred to one of the bolts B,

acted as a' fulcrum, in the present case the Cotter pin function of both bolts B, B, is simply to hold the club dolly D, rigidly in position on the socket head a", of the lever A.

Vhen my club dolly bar D, is to be used in connection with the actuating lever A, the latter is fulcrumed 011 a stirrup 8, attached to a suspender .9, adapted to be secured to any suitable or convenient stationary support above and adjacent to the location of the work to be accomplished. Obvlouslythe attachment of the suspender s, to a StittlOIir overhead support is a matter of detall to which I am in no wise restricted, that indicated in Fig. 9, being shown only as one of many. means and mechanical expedients that might be resorted to for the purpose. The fulcrum stirrup s, is preferably in the form of a hook as shownin Figs. 7 and 8, to facilitate; the seating of the lever A, although an eye or link might be used instead through which the handle of the lever A, might be inserted. The suspender S, to which the stirrup s, is attached, is preferably, but not necessarily flexible, a chain, or wire rope being suitable for the purpose, although I do not limit myself in this respect, the essential feature being the fulcrum s, on which the actuating lever A, may be seated in proximity to the work to be done. i

It is obvious that thus equipped and seated the dolly-lever A, is adapted for use sit uations and under conditions in which sup' port from below is impossible; and that it is also thus rendered available in contracted 10c spaces that would not otherwise be accessi the head of a rivet to be supported. When used as a club dolly the latter is positioned in alinement with the lever as in Fig. 8; when used as a spring dolly, it is positioned at right angles thereto, as in Fig. 9, and the spring is caused by bearing down upon the handle of the lever.

What I claim as my invention and desire to secure by Letters Patent is,

1. An implement of the character designated, comprising a one-piece dolly bar formed with a socket for contacting with a rivet head and with coupling pin seats on its opposite edges, an actuating-lever having a head for engagement with said dolly bar said lever head being formed with coupling pin bearings, coupling pins adapted I30 to engage with said bearings in the lever head and with the coupling pin seats in said dolly bar means for securing said coupling pins in position, and a fulcrum stirrup and Suspender for the support of said actuating lever, for the purpose described.

2. An implement of the character designated, comprising a one-piece dolly bar formed with a socket for contacting with a rivet head and with plural series of coupling pin seats on its opposite edges whereby the said dolly bar may be supported in difiterent positions on the actuating lever, said actuating lever having a head for engagement with said dolly bar and formed with coupling pin bearings, coupling pins adapted to engage with said bearings in the lever head and with the coupling pin seats in said dolly bar, means for securing said coupling pins in position, and a fulcrum stirrup and suspender for the support of said actuating lever, for the purpose described.

3. An implement of the character designated, comprising a one-piece dolly bar formed with a socket for contacting with a rivet head and also formed with series of coupling pin seats on its opposite edges, an actuating lever having a recessed head adapted to straddle said dolly bar, said head being formed with coupling pin bearings, coupling pins adapted to engage said bearings in the lever head and with the coupling pin seats in said dolly bar, means for securing said coupling pins in position, and a fulcrum stirrup and suspender for the support of said actuating lever.

4. In implement of the character designated, comprising a one-piece dolly bar formed with a socket for contacting with a rivet head and with a plural series of coupling pin seats on its opposite edges whereby the said dolly bar may be supported in different positions on the actuating lever, said actuating lever having a recessed head adapted to straddle said dolly bar, said head being formed with coupling pin bearings, coupling pins adapted to engage said bearings in the lever head and with the coupling pin seats in said dolly bar, means for securing said coupling pins in position, and a fulcrum stirrup and suspender for the sup port of said actuating lever.

5. An implement of the character designated, comprising a dolly bar formed with a socket for contacting with a rivet head and with plural sets of coupling pin seats, the dolly bar constructed to be positioned in alinement with or at right angles on and as related to the actuating lever, said actuating lever having a head for engagement with said dolly b r, said lever head being formed with coupling pin bearings, coupling pins adapted to engage with said hearings in the lever head and with the coupling pin seats in said dolly bar, and means for securing said coupling pins in position on the lever head, for the purpose described.

6. An implement of the character designated, comprising a one-piece dolly bar formed with coupling seats on opposite edges, an actuating lever and connections adapting the dolly bar to be positioned in alinement with the said lever or at an angle thereto.

GEORGE MOARTHUR.

Witnesses:

DOROTHY MIATT, Gno. WM. MIATT. 

